A kind of preparation method of epoxy phenolic nano anticorrosion coating

Abstract

A preparation method of epoxy phenolic nano-anticorrosion coating, which is prepared from component A and component B according to the following raw material mass percentages: (1) component A: 8-10% epoxy resin, 16-20% phenolic resin, 15-20% mixed solvent, 1-2% nanoparticles, 0.2-0.5% coupling agent, 5-8% zinc phosphate, 40-45% filler, 1.5-3% additives; (2) B component: 45 ~55% Versamine I‑70 type curing agent, 45~55% mixed solvent; the prepared component A and component B are mixed evenly according to the mass ratio of 10: (4~5) to make epoxy phenolic nano anticorrosion coating, The new nano-modified components introduced by the coating can reduce the gaps and vacancies between the coating molecules, make the coating more tightly bonded, and effectively improve the anti-corrosion performance of the coating.

Description

technical field

[0001] The invention relates to a preparation method of an anti-corrosion coating, in particular to a preparation method of an epoxy phenolic nano anti-corrosion coating. Background technique

[0002] In recent years, my country's petroleum, chemical, and new energy fields have developed rapidly. As the most widely used substrate, steel is often damaged by corrosive media such as dissolved oxygen and hydrogen sulfide during use. At present, the anti-corrosion method commonly used at home and abroad is to apply heavy-duty anti-corrosion coatings on the inner and outer walls of the equipment, so as to effectively improve the service life of metal equipment and reduce the use cost of equipment. According to the survey, the production and sales of heavy-duty anti-corrosion coatings in my country rank first in the world, and the main types are epoxy, zinc-rich, polyurethane, chlorinated rubber, and acrylic. Among them, epoxy has the largest market share, and its ...

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